SV1XV's photos with the keyword: SZF4

QSL letter sent by the Radio Direction of the Hellenic Telecommunications Organisation (OTE) to SWL Lars Anderson. It confirms reception of a voice mirror on the HF/SSB telephone circuit to New York, SZF4 on 10105 kHz. It is signed by Stefanos Eletheriou (Στέφανος Ελευθερίου), who had issued the first official Greek amateur radio licenses in 1937, when he was working for the Ministry of Posts, Telegraphs and Telephones.